state, plane, do, conclude - Answer>> steps to organize a stat problem
descriptive stat - Answer>> summarizes data (to get an average)
influential stat - Answer>> generalizes from sample (to make an assumption)
univariate (bivariate) - Answer>> data that collects one (or two) variables
categorical - Answer>> qualitative
numerical - Answer>> quantitative
continuous - Answer>> type of numerical data that measures time, height, number line values, etc.
discrete - Answer>> type of numerical data that measures countable variables
bar chart - Answer>> type of relative frequency distribution chart used with categorical data dot plot - Answer>> rudimentary histogram used with numerical data
bar chart, pie chart, relative porportion - Answer>> types of charts used with *categorical data* and what you must discuss with them
stem and leaf plot, dot plot, histogram, distribution - Answer>> types of charts used with *numerical data* and what you must discuss with them
frequency / # of observations in data - Answer>> relative frequency =
marginal distribution - Answer>> row total, column total, total totals in bar chart
make stem (with splits), add leaves, order leaves, add key - Answer>> steps to making a stem and leaf
plot
shape, spread, center, outlier - Answer>> patterns to
look for in a dot plot
center or typical value, spread of variability, general shape, location and # of peaks, gaps and outliers - Answer>> what to look for in a histogram right skewed has peak on left and vice versa - Answer>> how skewed graphs look
median is less than the mean - Answer>> mean and
median on a skewed right graph
mean is less than the median - Answer>> mean and
median on a skewed left graph
unimodal, bimodal, multimodal - Answer>> number of peaks a distribution can have
cumulative frequency / sample size - Answer>> cumulative relative frequency =
mean, outliers - Answer>> arithmetic average that is
sensitive to...
µ, X - Answer>> population and sample mean
median - Answer>> exact middle of data
mode - Answer>> most often used point in a set of data
order from smallest to largest and chop off equal number from both sides - Answer>> trimmed mean